The Seven Theories of Floating
by Michael Hutchinson, author of The Book of Floating

There’s no doubt that floating works – as a therapeutic, educational and entertainment tool it has powerful effects on a number of levels, including the physical, emotional, intellectual and spiritual. But why is the floatation environment so effective? What can be so actively beneficial in an essentially passive device? This is a question that has intrigued scientists, and today there is floatation research going on in laboratories around the world. The evidence accumulated so far falls into a number of distinct, though interrelated explanations. Among the most important are as follows:

1 THE ANTIGRAVITY EXPLANATION
2 THE BRAIN WAVE EXPLANATION
3 THE LEFT-BRAIN RIGHT-BRAIN EXPLANATION
4 THE THREE BRAIN EXPLANATION
5 THE NEUROCHEMICAL EXPLANATION
6 THE BIOFEEDBACK EXPLANATION
7 THE HOMEOSTASIS EXPLANATION

4. The Three Brain Explanation

In a series of seminal studies produced over the last twenty-five years, Paul MacLean, chief brain researcher at the National Institute for Mental Health (US), has produced convincing evidence that the human brain has three separate physiological layers, each corresponding to a stage in our evolutionary history. In this “Triune Brain Theory,” the most ancient layer is called the reptile brain, and it controls basic self-preservative, reproductive and life sustaining functions. Sitting atop the reptile, brain is the iambic system, which MacLean had dubbed the visceral brain, because generates all our emotions. The most recent part of the brain to develop is the “thinking cap” of convoluted gray matter called neocortex, seat of our abstract, cognitive functions; memory, intellect, language, and consciousness. While many of these three separate brains have overlapping functions they are all quite different in chemistry, structure, action, and style. Three brains should be better than one, but unfortunately, due to a ruinous design error, there is insufficient communication and coordination between the neocortex and the two older levels. This lack of communication results in a chronic dissociation between the higher and lower brains, which MacLean calls schizaphysiology, and which we experience in the form of conflicting drives – unconscious and conscious, savage and civilized, lusty and loving, ritualistic and symbolic, rational and verbal. There are times when the levels do act in harmony, as in peak experiences when body and mind unite in exhilarating moments of vitality, when our actions come effortlessly, spontaneously. But it’s hard to predict when these perfect moments will occur. Now there is evidence that suggests that, due to heightened internal awareness and decreased physical arousal, floating increases the vertical organization of the brain, enhancing communication and harmony between the separate levels. Floating, it has been hypothesized, can provide us with peak experiences almost at will.